Name
Title | ||
|---|---|---|
Non-Uniform Cylinder-To-Cylinder Combustion For Cost-Effective Lean Nox Trap Regeneration |
Abstract | ||
|---|---|---|
Meeting the stringent EPA Tier 3 emission standards has been one of the main challenges towards the commercialization of highly-efficient lean-burn gasoline engines in the United States. One of the potential aftertreatment solutions is three-way catalyst (TWC) coupled with lean NOx trap (LNT). LNT requires frequent regeneration via rich engine combustion, which can cause a fuel penalty by up to 3% In this study, a non-uniform cylinder-to-cylinder combustion (NUCCC) strategy and a cost-effective TWC-LNT system with a new architecture, were proposed to reduce the fuel penalty associated with LNT regeneration. The air-to-fuel equivalence ratios for different cylinders were optimized using genetic algorithm. The proposed NUCCC strategy and new TWC-LNT system were verified over a simplified FTP-72 cycle in simulation. Simulation results demonstrated the NUCCC-based regeneration strategy could reduce the fuel penalty by 61.80% compared to the traditional uniform cylinder-to-cylinder combustion (UCCC) based LNT regeneration strategy. |
Year | Venue | DocType |
|---|---|---|
2018 | 2018 ANNUAL AMERICAN CONTROL CONFERENCE (ACC) | Conference |
ISSN | Citations | PageRank |
0743-1619 | 0 | 0.34 |
References | Authors | |
0 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Qinghua Lin | 1 | 0 | 2.03 |
| Pingen Chen | 2 | 0 | 1.01 |